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25-03-2026 10:35

Hulda Caroline Holte

Hello,I collected this species growing on a dead b

26-03-2026 15:31

Ãke Widgren Åke Widgren

Hello,I found this one in October last year, on r

26-03-2026 12:50

David Chapados David Chapados

Hi,I'm having a hard time figuring which Pseudombr

26-03-2026 11:17

Vasileios Kaounas Vasileios Kaounas

Found 11-03-26, in leaf of Ulmus sp. Diameter 2-4

25-03-2026 22:23

Marc Detollenaere Marc Detollenaere

Dear Forum,On a debarked stem of Tilia, we found s

24-03-2026 15:44

Åge Oterhals

I hope someone can confirm the name of this collec

25-03-2026 20:53

François Bartholomeeusen

Dear forum members,On 23 March 2026, I found sever

23-03-2026 20:16

Miguel Ãngel Ribes Miguel Ángel Ribes

Good eveningI'm unable to identify this Coprotus o

25-03-2026 15:06

Bernard CLESSE Bernard CLESSE

Bonjour à toutes et tous,Pourriez-vous me confirm

25-03-2026 13:54

Enrique Rubio Enrique Rubio

Does anyone know where I could download Paoletti's

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Ostropoloid fungus on Ammophila
Enrique Rubio, 11-05-2015 19:21
Enrique Rubio

Hi to everybody


This Karstenia species was found on debris of Ammophila arenaria. This fungus seems to match with Karstenia idaei, a fungus that we found commonly on subalpine woody sustrates, but I have doubts with Karstenia macer a species that I don't know although it has a negative asci IKI reaction. 


Can you help me?


Thanks again

  • message #35800
  • message #35800
  • message #35800
Hans-Otto Baral, 11-05-2015 22:20
Hans-Otto Baral
Re : Ostropoloid fungus on Ammophila
I can hardly believe that the asci are negative. Did you try with KOH-pretreatment?

K. idaei is really a good option, though the spores are a bit narrow. K. macer is usually with grey-olive exterior.
Enrique Rubio, 12-05-2015 21:28
Enrique Rubio
Re : Ostropoloid fungus on Ammophila
Thanks Zotto. Tomorrow I'll try the KOH pret. of the asci